aboutsummaryrefslogtreecommitdiffstats
path: root/net
diff options
context:
space:
mode:
authorHerbert Xu <herbert@gondor.apana.org.au>2009-05-26 18:50:22 +0000
committerDavid S. Miller <davem@davemloft.net>2009-05-27 03:25:55 -0700
commit67147ba99aeb48f2863e03b68e090088a34c1b5d (patch)
tree08bb9375134fe553c991f5f160957330de13f414 /net
parent78a478d0efd9e86e5345b436e130497b4e5846e8 (diff)
downloadmrst-s0i3-test-67147ba99aeb48f2863e03b68e090088a34c1b5d.tar.gz
mrst-s0i3-test-67147ba99aeb48f2863e03b68e090088a34c1b5d.tar.xz
mrst-s0i3-test-67147ba99aeb48f2863e03b68e090088a34c1b5d.zip
gro: Localise offset/headlen in skb_gro_offset
This patch stores the offset/headlen in local variables as they're used repeatedly in skb_gro_offset. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/core/skbuff.c23
1 files changed, 10 insertions, 13 deletions
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index c88426b5114..168e949df6a 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -2666,13 +2666,15 @@ int skb_gro_receive(struct sk_buff **head, struct sk_buff *skb)
struct sk_buff *nskb;
unsigned int headroom;
unsigned int len = skb_gro_len(skb);
+ unsigned int offset = skb_gro_offset(skb);
+ unsigned int headlen = skb_headlen(skb);
if (p->len + len >= 65536)
return -E2BIG;
if (skb_shinfo(p)->frag_list)
goto merge;
- else if (skb_headlen(skb) <= skb_gro_offset(skb)) {
+ else if (headlen <= offset) {
skb_frag_t *frag;
int i;
@@ -2680,10 +2682,8 @@ int skb_gro_receive(struct sk_buff **head, struct sk_buff *skb)
MAX_SKB_FRAGS)
return -E2BIG;
- skb_shinfo(skb)->frags[0].page_offset +=
- skb_gro_offset(skb) - skb_headlen(skb);
- skb_shinfo(skb)->frags[0].size -=
- skb_gro_offset(skb) - skb_headlen(skb);
+ skb_shinfo(skb)->frags[0].page_offset += offset - headlen;
+ skb_shinfo(skb)->frags[0].size -= offset - headlen;
frag = skb_shinfo(p)->frags + skb_shinfo(p)->nr_frags;
for (i = 0; i < skb_shinfo(skb)->nr_frags; i++)
@@ -2736,16 +2736,13 @@ int skb_gro_receive(struct sk_buff **head, struct sk_buff *skb)
p = nskb;
merge:
- if (skb_gro_offset(skb) > skb_headlen(skb)) {
- skb_shinfo(skb)->frags[0].page_offset +=
- skb_gro_offset(skb) - skb_headlen(skb);
- skb_shinfo(skb)->frags[0].size -=
- skb_gro_offset(skb) - skb_headlen(skb);
- skb_gro_reset_offset(skb);
- skb_gro_pull(skb, skb_headlen(skb));
+ if (offset > headlen) {
+ skb_shinfo(skb)->frags[0].page_offset += offset - headlen;
+ skb_shinfo(skb)->frags[0].size -= offset - headlen;
+ offset = headlen;
}
- __skb_pull(skb, skb_gro_offset(skb));
+ __skb_pull(skb, offset);
p->prev->next = skb;
p->prev = skb;